from the Tyne to Boulness, on the Solway Firth, a distance of eighty miles. Called

1

The Roman Wall, because it was the work of the Romans.

2

Agricolas Wall, because Agricola made the south bank and ditch.

3

Hadrians Wall, because Hadrian added another vallum and mound parallel to Agricolas.

4

The Wall of Sevrus, because Severus followed in the same line with a stone wall, having castles and turrets.

5

The Picts Wall, because its object was to prevent the incursions of the Picts.

6

The wall of Antoninus, now called Graemes Dyke, from Dunglass Castle on the Clyde to Blackness Castle on the Forth, was made by Lollius Urbicus, legate of Antoninus Pius, A.D. 140. It was a turf wall.